Icom IC-725, Service Manual

Page 1: ...HF ALL BAND TRANSCEIVER IC 725 lcom Inc ...

Page 2: ...ruin the transceiver DO NOT expose the transceiver to rain snow or any liquids DO NOT reverse the polarities of the power supply when connecting the transceiver DO NOT apply an RF signal of more than 20 dBm 100 mW to the antenna connector This could damage the transceiver s front end REPAIR NOTE 1 Make sure a problem is internal before disassembling the transceiver 2 DO NOT open the transceiver un...

Page 3: ...IES 5 3 5 3 FRONT AND PLL UNITS CONNECTOR ASSEMBLY 5 5 5 4 FRONT AND MAIN UNITS CONNECTOR ASSEMBLY 5 6 5 5 PA AND FILTEA UNITS CONNECTOR ASSEMBLY 5 7 SECTION 6 ADJUSTMENT PROCEDURES 6 1 7 6 1 PREPARATION BEFORE SERVICING 6 1 6 2 PLL ADJUSTMENT 6 _ 2 6 3 RECEIVER ADJUSTMENT 6 4 6 4 TRANSMITTER ADJUSTMENT 6 6 SECTION 7 BOARD LAYOUTS 7 1 5 7 1 FRONT UNIT 7 1 7 2 MAIN UNIT 7 2 7 3 PLL UNIT 7 3 7 4 PA ...

Page 4: ... one hour at 25 C 77 F Less than 350 Hz at 0 C 50 C 32 F 122 F 13 8 V DC 15 negative ground Receive squelched 1 2 A max audio output 1 5 A Transmit 20 A 241 W x 94 H x 239 D mm Projections not included 9 5 W x 3 7 H x 9 4 D in 4 6 kg 10 1 lb SSB CW FM 10 100 W continuously adjustable AM 10 40 W continuously adjustable More than 50 dB below peak output power More than 40 dB below peak output power ...

Page 5: ...circuit Tx 2nd mixer circuit _ MCF Fl1 FL 71 Noise blanker circuit Rx 2nd Tx 1st mixer IC1 ND487C1 3R MCF Fl2 FL 23 i I 9 MHz SSB CW filter Fl3 FL 30 2 1 1st LO amp circuit Phase detector Prescaler Sub loop VCO c DDS UNIT 2nd LO circuit Reference crystal X2 CR 21 30 72 MHz Divider IC15 M74ALS74AP Space for Ul 7 AM FM UNIT APC ALC circuit BFO circuit SSB modulator IC6 µPC1037HA Product detector IC5...

Page 6: ... PA AND FILTER UNITS Tx Rx switching relay RL13 DS1 M DC12V Predrive amplifier 01 2SC1971 Drive amplifier 02 03 2SC3133 Final amplifier 05 06 2SC2904 Thermal switch 81 OHD 3 90M 2 2 ...

Page 7: ...H L _jJ 3 5MH L _jj 7 0MH 07 8 IK OX2 ANT 015 17 21 r l I 1 VCOI 70 H15 71 4514MH1 VC02 78 4 15 85 4 f4MHz VC03 85 4514 92 4514MHr VC04 92 40115 100 451 5MHz PLL UNIT IC17 pPCI037H 2SK112A f4 PA LPF BUFF Lt LI I I 01 MVO Q4 2801406 D2 3 MV5X2 QT 2SBOl2 I 0 L DATA CPU tea HD83AOIY IC12 M84052 MAIN DUL RIT I s VFO MHr IC DISPLAY D IC4 pPD4069 IC6 BA222 151 13 81 v ...

Page 8: ... higher than the BPF exit to improve multi signal and strong signal characteristics 4 1 3 PREAMPLIFIER CIRCUIT MAIN UNIT The preamplifier circuit uses low noise junction FETs 2SK125 x 2 to provide 1O dB gain over a wideband frequency range When the PRE switch is turned ON the signals from the RF filter are amplified by the preamplifier circuit 08 09 When the PRE switch is turned OFF the signals by...

Page 9: ... that cuts out pulse type noise signals at the noise blanker gate D5 D8 A portion of the signals from Fl2 is amplified at the noise amplifiers 016 IC2 and detected at the noise detector D12 D13 The detected voltage from the noise detector is applied to the noise blanker switch 019 The threshold level of the noise blanker switch is set at 0 9 V When the detected voltage exceeds the threshold level ...

Page 10: ...IN UNIT The AF signal from the AF input mode selector switch is applied to the AF preamplifier 035 036 The CW sidetone signal is applied to 036 The output from the AF preamplifier is applied to the AF control FRONT UNIT R1 b and the 2 8 kHz cut off active low pass filter 037 The AF signal is power amplified at IC9 to drive the speaker 4 1 11 AGC AND S METER CIRCUIT MAIN UNIT The receiver gain is d...

Page 11: ...ge line The optional CW narrow filter is not used in transmitting The resulting signal is amplified at 022 and is then mixed with the 2nd LO signal to be converted to a 70 45 MHz IF signal at IC1 IC1 is used in receiving and transmitting The FM signal from the optional AM FM UNIT is amplified at 022 and is then applied to IC1 The 70 45 MHz IF signal is amplified at the IF amplifier 07 and is then ...

Page 12: ...054 turns ON and the POC voltage is shifted for 40 W AM output power maximum The ALC bias voltage from IC11 pin 1 is also applied to the inversion amplifier IC11 pin 6 to control an intensity of the TX indicator showing the ALC level An external ALC input from the ALC jack is applied to the buffer amplifier 053 ALC operation is identical to that of the internal ALC 4 2 7 APC CIRCUITS MAIN UNIT The...

Page 13: ...circuits The main loop generates 70 9515 100 4515 MHz signals in 512 kHz steps 4 6 Because the sub loop produces 1O Hz steps the PLL produces a 30 MHz frequency range in 10 Hz steps The oscillated signal at one of the 4 VCOs 015 017 019 021 see Section 4 3 4 for details is amplified at 023 The signal is mixed with the sub loop output fLO 62 05 62 56199 MHz at IC16 023 is an isolator which ensures ...

Page 14: ...OSCILLATOR 033 MULTIPLIER x2 036 SUB LOOP Fig 6 2nd LO 61 44 MHz 4 4 LOGIC CIRCUITS BAND FREQUENCY MHz BPF VOLTAGE 4 4 1 BAND SELECTION DATA PLL UNIT To select the correct bandpass filter the low pass filter and VCOs on the MAIN and PLL UNITS the CPU outputs the following data R29 R40 and D29 D35 convert the B0 87 signals into a band voltage O 7 5 V for external equipment 0 5 1 599 1 6 1 999 2 0 3...

Page 15: ...RTER PLL UNln IC11 is a parallel serial converter IC Parallel data from the CPU are converted into serial data to transfer the PLL N clata DDS N data data for LCD driver etc When the power is turned ON the CPU also outputs programmable divider data and a control signal for universal ports to the PLL IC IC13 4 5 REGULATOR CIRCUITS Either 8 5 or 5 V DC are supplied from corresponding regulator circu...

Page 16: ...SECTION 5 MECHANICAL PARTS AND DISASSEMBLY 5 1 FRAME DISASSEMBLY ...

Page 17: ...iI 0 c CD I VRUNIT 81786C I l 5 1 ...

Page 18: ...ase 1 1 8610004670 Button K119 C MEMO 1 8510002690 PA shield case B 1 8610004680 Button K119 D MW 1 8510004360 PA shield case B cover A 1 8610004690 Button K119 E DOWN 1 8510005310 DDS shield case 1 8610004700 Button K119 F FUNC 1 8510005320 DDS shield case cover 1 8610004710 Button K119 G RIT TUNER 2 2230000120 Switch POWER SDDSA3159A 1 8610004720 Button K120 SSB CW N AM FM 3 6510000190 Connector...

Page 19: ...ACCESSORIES 5 2 PA UNIT AND r1 I FILTEA UNIT B 1791C 5 3 PA UNIT B 17900 ...

Page 20: ... BS 8850000150 Flat washer M5 Ni BS 8830000360 Wing nut M5 Ni 6510004880 ANT connector MR DS E 01 2510000040 Speaker C065K1210810 6510003780 DC power socket LLR 6 Screw abbreviations PH Pan head B1 Self tapping screw Ni Nickel BS Brass ACCESSORIES wa ORDER DESCRIPTION NUMBER NO Q Optional product DC power cable OPC 025 A Optional product Hand microphone HM 12 5210000080 Spare fuse FGB 20A 52100001...

Page 21: ...to D MAIN UNIT DDS UNIT to P21J2l 8 2203A PA UNIT Lr P4 JI nn Jll w CT J7 CCCCIOC ij J9 D to I I I MAIN UNIT PHJll JI I Ell ccc J6 J5 from PA UNIT H P5 AIN UNIT 1 P3 J3 P4 P2 J2 to __ MAIN UNIT J4 I AF SOL I IMICIRF PWRI __ AA c 1 2 LI I I I _ DOJ VR UNIT I JI I I II 1111 I Vm 11s6cl I R23 J2 II l_l L I l_L r lf I METER I utf l JI M M SW UNIT 8 1787C lJ HH l L l Pi5WER1 5 5 ...

Page 22: ...S CJ P4 JI uDDDDDDDDD U to PLL UNIT JI I from PLL UNIT Jl2 MAIN UNIT 8 1788E to OPTIONAL UNIT Ul 7 J21 SW UNIT 8 1787C J7 baaaa JS DDDDDD u PaaaOJ22 to OPTIONAL UNIT Ul 7 CW FILTER OPTIONAL VR UNIT 8 1786Cl 5 6 AM FM UNIT Ul 7 OPTIONAL to OPTIONAL J20rD DDDDDD1 to PA UNIT P4 JI ...

Page 23: ...5 PA AND FILTER UNITS CONNECTOR ASSEMBLY I P2 to MAIN UNIT Jf2 P3 to MAIN UNIT Jl3 to MAIN UNIT JI I 0 FILTER UNIT 8 1791C 0 0 0 0 to PLL UNIT J7 PA UNIT 8 17900 0 5 7 to to MAIN UNIT POWER SW J6 Pl l SI ...

Page 24: ...racy 1 ppm or better Attenuator Power attenuation 40 or 50 dB Sensitivity 100 mV or better Capacity 150 W or more RF voltmeter Frequency range 0 1 100 MHz Spectrum analyzer Frequency minimum At least 90 MHz Measuring range 0 01 10 v Spectrum bandwidth 100 kHz or more Oscilloscope Frequency range DC 20 MHz Measuring range o 01 1ov Standard signal Frequency range 0 1 30 MHz generator SSG Output leve...

Page 25: ...played frequency 14 12649 MHz Approx 2 0 V DC Verify 1ST LO 1 Display d frequency 7 99999 MHz PLL Connect the 6 S V DC PLL C3S LOCK Mode USB oscilloscope to R77 VOLTAGE Receiving shielding case side 2 Displayed frequency 14 99999 MHz 6 S V DC C46 3 Displayed frequency 21 99999 MHz 6 S V DC CS9 4 Displayed frequency 33 00000 MHz 7 S V DC C70 s Displayed frequencies More than 2 0 V DC Verify O SOOOO...

Page 26: ...e C59 j adjustment C7 0 PS 1st LO output level CP R133 DDS loop CP L30 DDS loop adjustment PLL UNIT 1 il DDS UNIT C1 DDS clock adjustment IC4 pin 11 or IC5 pin 11 DDS clock CP C134 Reference frequency pre setting E L35 Reference frequency adjustment L38 L39 P4 Reference frequency CP 6 3 ...

Page 27: ...o output L33 L34 ATT switch OFF level L35 L36 NB switch OFF L16 L17 PRE switch ON L21 L22 SOL control Max CCW L23 L79 Set the signal generator L78 L77 Level 0 16 µV 123 dBm Modulation OFF Receiving TOTAL GAIN 1 Displayed frequency 14 10000 MHz Rear Connect the AC milli 1 0 V 0 dB Front AF Mode USB panel voltmeter to the panel control PRE switch OFF EXT SP jack with Set the signal generator an 8 a ...

Page 28: ...e waveform on the NB switch ON cathode of 013 oscilloscope Apply an RF signal including th following pulse noise to the antenna connector RF signal level 3 2 µV 97 dBm Receiving 11 4 msec MAIN UNIT 013 Noise blanker CP R266 BFO CP Noise blanker adjustment C L26 L25 L33 Sensitivity 1 adjustment L21 6 5 L823 L83 BFO adjustment C294 R110 _J s meter R116 adjustment R138 Sensitivity pre setting Total g...

Page 29: ...re solder W14 and R26 PA AND FILTER UNITS ___r R8 Idling current adjustment i___ R19 C96 SWR detector adjustment MEASUREMENT LOCATION Unsolder W14 and connect the ammeter to the unsoldering points iet JI 0 0 ammeter W1 V C11 side Unsolder Unsolder R26 and connect the ammeter to the unsoldering points ammeter o 0 µ R26 Et e CJ Unsolder PA UNIT 6 6 ADJUSTMENT POINT VALUE UNIT ADJUST 50mA PA RS 300 m...

Page 30: ... keep the output power at so W for each adjustment OUTPUT 1 Displayed frequency 1 91000 MHz Rear Connect the RF Pre set to max CCW MAIN R194 POWER Mode CW panel power meter to the R241 RF PWR control Max CW antenna connector 2 Connect a key to the KEY jack and 100W R210 keep the key down 3 RF PWR control Max CCW 10W R208 4 Repeat steps 2 and 3 a couple of times lcAPC 1 Displayed frequency 14 10000...

Page 31: ...lay time CP MEASUREMENT ADJUSTMENT POINT VALUE LOCATION UNIT ADJUST Connect the Minimum carrier level MAIN R177 spectrum analyzer to Less than 50 dB R179 the antenna Alternately connector via the adjust attenuator R210 1 Output power adjustment R208 R194 Output power pre setting le APC adjustment R186 Po meter adjustment J6 pin 2 SWR detector CP R177 R179 J6 pin 3 le APC adjustment pre setting J6 ...

Page 32: ...D SOLS SEND GND MICE AF OUT to MAIN UNIT IJ7l from VRUNIT L 00 PB to MAIN UNIT J8 to to PLL UNIT IJ21 P2 0 10 I 1u z umucnm 0 from IVRUNIT l to MAIN llllIT J91 MAIN UNIT IJIOI FUNCTION DISPLAY to PLL UNIT J6 I I 11 _ m _ ___ __I I 523 IMAIN DIAL I to PLL UNIT 4 PLL UNI ...

Page 33: ... l U UNIT J3 I 10 PLL UNIT CJ11 VR UNIT 7 1 2SB909M Q 01 A_ UECTOR EMITTER C 2SC2458 GR 02 03 04 06 RN1204 05 EMITTER P10 P7PBP10A _ P9 ...

Page 34: ...09M Q 05 EMITTER C CW SEMI CW BREAK IN BREAK IN DELAY J21 J7 IFlE I IF1F IIr T XL fro fro1n FM All UNIT CUl n P1 FRONT UfllT P7 J8 frona FRONT UNIT P8 2SC2053 01 04 EMITTER COLLECTO BASE E IAce oocKET51 T J jw j l j jAMju PLL UNIT P3 r10l J22 IFM1 I l I FM AM UNlT IUl 7 PZ OPTIONAL 2SC2458 GR 011 018 019 026 029 031 035 036 037 040 044 045 049 050 056 ...

Page 35: ...NITlUl 71 Jl IOPTIOl AU 1 clGND I IFSM ITB IAM IFM I I FRONT UNlT lP10J PA UNIT 2SD468C 046 047 048 l EMITTER E 7 2 2SK125 013 014 08 09 G D DRAIN GATE SOURCE S 2SK192A Y 016 GATE SOURCE G O DRAIN S 2SK241 Y 022 028 07 GATE RCE DRAIN 3SK74 K M 02 03 015 021 027 s GATE 1 0 GATE2 SOUACE G DRAIN S RN1202 012 023 032 034 051 Q6 EMITTER RN1204 033 039 054 055 CTOR E EMITTER RN2202 010 020 024 025 041 4...

Page 36: ...rom FRONT UNIT Pt TUNER CONTROL SOCKET P6 from FRONT UNIT P6 to MAIN UNIT IJ 1l J7 0 I ICOM I 1 m 111311 OC43 001 1410 rS Vlt8 i n iOC56 cco n Ola CCPRl 2 CIT C 021 I i I 1 1 II cJ Ifl I Ifl DDS UHIT f r i IL1 IL2 IL3 IL4 IL IL IGNDI from PA UNIT P7 J5 lo ol J uJ from FRONT UNIT P5 to MADI UNIT J2 ...

Page 37: ...c c LECTOR E EMITTER 2SC2458 GR Y 01 010 011 013 014 016 018 02 020 022 03 033 04 05 06 07 08 09 032 2SC2668 0 023 024 026 027 030 034 036 LLECTOR E EMITTER 2SK192A GR 015 017 019 021 029 Gd GATE SOURCE S DRAIN RN1202 025 035 c EMITTER RN2202 031 E BASE C COLLECTOR EMITTER ...

Page 38: ...7 4 PA UNIT FILTER UNIT IANTENNA CONNECTOR I to MAIN UNIT J12 L5 P5 to PA UNIT to PLL l llIT J7 ...

Page 39: ...406 y 04 c 25C1971 01 COLUCTO MITTER BASE E RN1202 08 09 2SC2904 05 06 EMITTER TTER C CX U ECTOA BASE EMITTElll EMITIER 6 E RN2202 010 4 BASE C COLLECTOR EMITTER 7 4 1 I I I I I j I I I L _J to 1 t P6 v 25C3133 02 03 pg II I I I I MF1 HMK 2605 01 100 COLLECTO MITTER BASE E J6 ...

Page 40: ...7 5 DDS UNIT COMPONENT SIDE FOIL SIDE FOIL SIDE COMPONENT SIDE FOILSIDE COMPONENT SIDE ...

Page 41: ...MIT 0 01 o ON N IO MAIN UNIT J21 CJ4 Q 0047 4 MPCtO S THA RS1 t k f11 AMi V to MAIN UNIT J22 FM AM U R4010 ICS M02 8L z 2K s r 7 5 to Fll lNT UNIT lJSl MAIN UNIT lJ20 01 2SC278S 014 RNl202 FM Ml00 V I LO UiH g IE J et C46 4 7 BP 03 ftN1202 i C7 100 ff 012 199133 ...

Page 42: ...01K S10 2260000070 Switch SKHHAK013A VFO L3 6180000900 Coil LAL 03NA 101K S11 2260000070 Switch SKHHAK013A MEMO L4 6180000900 Coil LAL 03NA 101K S12 2260000070 Switch SKHHAK013A RIT L5 6180000900 Coil LAL 03NA 101K 513 2260000070 Switch SKHHAK013A MW L6 6180000900 Coil LAL 03NA 101K 514 2260000070 Switch SKHHAK013A FUNG L7 6180000900 Coil t L8 6180000900 Coil 515 2260000070 Switch SKHHAK013A SPLIT...

Page 43: ...2 1710000050 Diode 1SS53 Q25 1590000360 Transistor RN2202 D43 1710000050 Diode 1SS53 Q26 1530000110 Transistor 2SC2458 GR D44 1710000050 Diode 1SS53 Q27 1560000110 FET 3SK74 M D45 1710000050 Diode 1SS53 Q28 1560000100 FET 2SK241 Y D46 1710000050 Diode 1SS53 Q29 1530000110 Transistor 2SC2458 GR D47 1710000050 Diode 1SS53 Q30 1530000110 Transistor 2SC2458 GR D48 1710000050 Diode 1SS53 Q31 1530000110...

Page 44: ...140001260 Coil LR 1S1 L88 6180000880 Coil LAL 03NA 100K L12 6180000740 Coil LAL 03NA R56M L89 6180000950 Coil LAL 03NA 150K L13 6180000690 Coil LAL 03NA R22M L90 6180000950 Coil LAL 03NA 150K L14 6150000990 Coil L8 114 L91 6180000900 Coil LAL 03NA 101 K L16 6150001770 Coil LS 198 L92 6180000900 Coil LAL 03NA 101K L17 6150001770 Coil LS 198 L93 6910000670 Coil BT01RN1 A61 001 L18 6140002060 Coil LR...

Page 45: ...30 7010004150 Resistor R20J 4700 R56 7010003460 Resistor ELR20J 3 3 kO R131 7010003700 Resistor ELR20J 220 kO R57 7010004230 Resistor R20J 2 2 kO R132 7010004340 Resistor R20J 15 kO R58 7010004070 Resistor R20J 100 0 R133 7010004300 Resistor R20J 6 8 kO R59 7010004230 Resistor R20J 2 2 kO R134 7010004250 Resistor R20J 3 3 kO R60 7010003440 Resistor ELR20J 2 2 kO R135 7010003240 Resistor ELR20J 47 ...

Page 46: ...6 7010003480 Resistor ELR20J 4 7 kn 01 C4 4010000260 Ceramic 00104 SL 470J 50V R206 7010003480 Resistor ELR20J 4 7 kn 02 C5 4010000380 Ceramic 00107 SL 221J 50V R207 7010003510 Resistor ELR20J 6 8 kn C6 4010000150 Ceramic 00104 SL 150J 50V R208 7310000740 Trimmer RH0651CS3J2KA 472 C7 4010000350 Ceramic 00106 SL 151J 50V R209 7010003530 Resistor ELR20J 10 kn C8 4040000110 Barrier Layer UAT 04X 222K...

Page 47: ...K C86 4040000260 Barrier Layer UZE 08X 104M C172 4040000460 Barrier Layer RAU 08SA 821 K C87 4010000070 Ceramic 00104 SL 050C 50V C173 4040000250 Barrier Layer UAT 08X 473M C89 4010000100 Ceramic 00104 SL 0800 50V C174 4010000520 Ceramic 00108 B 472K 50V C90 4010000100 Ceramic 00104 SL 0800 50V C175 4010000410 Ceramic 00107 SL 331J 50V C91 4040000260 Barrier Layer UZE 08X 104M C176 4010000270 Cera...

Page 48: ... Barrier Layer UAT 05X 472K C248 4510002640 Electrolytic 25 SS 47 µF PLL UNIT C249 4510001160 Electrolytic 50 MS7 1 µF C250 4510001170 Electrolytic 50 MS7 2R2 µF REF ORDER DESCRIPTION NO NO C251 4510001160 Electrolytic 50 MS7 1 µF C252 4510001160 Electrolytic 50 MS7 1 µF IC1 1130000670 IC µP04071BC C253 4010000520 Ceramic 00108 B 472K 50V IC2 1130000970 IC µP04030BC C254 4010000520 Ceramic 00108 B...

Page 49: ...e 188133 L26 6180000960 Coil LAL 03NA 102K D17 1710000160 Diode 188133 L27 6180000900 Coll LAL 03NA 101K D18 1710000160 Diode 188133 L28 6180000900 Coil LAL 03NA 101K D19 1710000160 Diode 188133 L29 6180000900 Coil LAL 03NA 101K D20 1710000160 Diode 18 133 L30 6110001650 Coil LA 248 D21 1710000160 Diode 188133 L31 6170000180 Coil LW 19 D22 1710000160 Diode 188133 L32 6180000850 Coll LAL 03NA 4R7K ...

Page 50: ...0001150 Resistor R25J 1 kO R125 7010003620 Resistor ELR20J 47 kn R49 7010004670 Resistor R50XJ 220 R126 7010003420 Resistor ELR20J 1 5 kn R50 7010003530 Resistor ELR20J 10 kn R127 7010004110 Resistor R20J 220 n R51 7010003240 Resistor ELR20J 47 n R128 7010003360 Resistor ELR20J 470 n R52 7010003660 Resistor ELR20J 100 kn R129 7010004110 Resistor R20J 220 n R53 7010003530 Resistor ELR20J 10 kn R130...

Page 51: ...V C21 4530000150 capacitor Array B7ZC0711 32N C97 4040000150 Barrier Layer UAT 05X 472K C22 4010000520 Ceramic 00108 B 472K 50V C98 4010000520 Ceramic 00108 B 472K 50V C23 4530000270 Capacitor Array B8XC0114 32N C99 4010000300 Ceramic 00104 SL 680J 50V C24 4040000250 Barrier Layer UAT 08X 473M C100 4010000080 Ceramic 00104 SL 0600 50V C25 4040000260 Barrier Layer UZE 08X 104M C101 4010000320 Ceram...

Page 52: ...4010000180 Ceramic DD104 SL 220J 50V REF ORDER DESCRIPTION NO NO C164 4010000210 Ceramic DD104 SL 300J 50V C165 4020000260 Cylinder TP125 X 103M 01 1530000790 Transistor 2SC1971 C166 4040000250 Barrier Layer UAT OBX 473M 02 1530000190 Transistor 2SC3133 C167 4040000250 Barrier Layer UAT OBX 473M 03 1530000190 Transistor 2SC3133 C168 4040000250 Barrier Layer UAT OBX 473M 04 1540000200 Transistor 2S...

Page 53: ...n C33 4010000520 Ceramic DD108 B 472K 50V RS 7310000680 Trimmer RH0651C12J04A 101 C34 4510002780 Electrolytic 16 SS 10 µF R9 7010000990 Resistor R25J 47 n C35 4010000520 Ceramic OD108 B 472K 50V R10 7010000990 Resistor R25J 47 n C36 4510002440 Electrolytic 16 SS 220 µF 8X11 R11 7010004730 Resistor R50XJ 120 n C37 4040000250 Barrier Layer UAT 08X 473M R12 7010004730 Resistor R50XJ 120 n C38 4010000...

Page 54: ...00108 B 472K 50V C94 4010000520 Ceramic 00108 B 472K 50V C95 4010000520 Ceramic 00108 B 472K 50V C96 4610001120 Trimmer CVSSC2001 C97 4010000410 Ceramic 00107 SL 331J 50V C98 4010000410 Ceramic 00107 SL 331J 50V C99 4010000430 Ceramic 00109 SL 471J 50V C100 4010000430 Ceramic 00109 SL 471J 50V C101 4040000250 Barrier Layer UAT 08X 473M C102 4010000330 Ceramic 00105 SL 101J 50V C103 4010000120 Cera...

Page 55: ...I TX T L i TX L7V ov ___ IC I 12PIH 2m llPJH zm c IOPtN j _ 8mttC 9PIN 4mHeePJN 11 f Sca11nl119 ft _ IOKe c c IOIC IOIC8 SOL 11 l OJllUt 01 011 rssr s J S MdlllF 0 Sl7 ANO _ 0 l Hr 0 SIOf XMI 0 Sii ltHr IU IMSCAllllJ S tO _ 0 r 0 rr S12 1V1 0 RITI SZI CW Jll l13fM llFOI HI _ 07 0 U C 1 I NO 095 0 J LOCK 1r 097 I f 1 1 o n _ oer YOI r I I I 1tn re 1t1T1 1 I I I I ltlT RITZ or u I I I ltlTl I I I L ...

Page 56: ...r cwnt 0 er 0 t oio oes IOH 017 097 I J 1 I I I Ott 1 097 ______ MIC sr ffi m lT2 TJ ni111z til 81 IPZJ 7Xl Al OI Al GZ J7 n I I 0 JOO 11 I _ lo o 1 j n o _ lo 20 2 21 A CH NJZ02 I TX fZ IV 0 v r 1001 1SK7 4 0 7 15 53 C70 SOL r lt2 01 Tx Rx o v 1 ...

Page 57: ...7 RX ZV PRE Q lj 7 21 lfNIZOZ ISQL ONJ OVfSQL 01 11 socscm1 L1 J r ff 1f r l c oss ISS13 IC4 ISQL om f J 1 v l1 3 s 1 i 52v 171 3 svl 1 121 OV 5I0 8V 818 0VI RIOT f70K ONJ 131 o 3vlfll o 5vl SOLLIJIOJ TX RX 15 0 V I I 47 Cll7 1 c 0 ...

Page 58: ...6 I 4 TX RX 2 SV MAIN UNIT cw 111 ov sss cw r ov 2 015 9 ISS5J i 1 I I JSS t J T I V 100 r t 1 c V OH NU02 Ji C21 9 O OCMJ r l l 1 1 t 1 CW N 7 2V S8 CW t n t l 11137 100 lfl45 JOO T X R I zov Ii I r I LT u 0 iii w1i f UT IOOJ H x 01 3 2v t 558 CW N tSSl l CW NJ l 4 3YlCWJ OVl 1 nr1T OO ...

Page 59: ...J _ _ r r v1 _ r r rTrc I 1 oC r l llr toJ fJZH u Q f Jf J 0 _ I I I I l I i t I l Jf2 L T J r ite _ l I l 9 1 LW N UO t W K IO L tOt 8AM I PLL UNIT J 0 0 0 0 0 0 0 0 0 0 0 0 i 0 0 c1 v 0 0 0 0 0 0 0 0 0 0 0 u L9 a GHO _ fi 0 fO 0 fO l l 9 1 0 0 GNO ...

Page 60: ...J Jl4 Jl T SIJ TX 1 ILO ____ UNO l C N LM LN uP LJOCJ LIOI ue um Of TX Jl S 1 14 1o _ _ I I PLL UNIT cr v 9 1 FRONT AND MAIN UNITS ANT I L PA UNIT m ...

Page 61: ...0 I I 2 I Q Q H t Q c sv st Q ot Cl4 lttOI 0 041 IZO 19 tv r41 c 1 _ _c 1 l 10 O 0047 O OO l7 4 J tc i r _ __ _ _ _ 1 iQ7 2N ISCHff tll _ r 11 0 1 J07 CH I i e ev 61 g T D 2 l OV z 2 1 m5 i1 i o v crze o r o o sv _ n c 1 v o _ 1 OZ7 Ot J 02 1 ICl1 ff y v 1 Ht ISSJ33 7 1 ll t t t t Cg l Uo cir 2 ov osi Jl W37HA ZSCZ6d Jt U 7 USI CW T LSI l uca I cw H I Z P TuNK y L lfD lfH ...

Page 62: ... _ _ 011 01 01 v v nca M 1 01 I 5 ov r __ H J _ J 1 ot t t t i 1 1 UU I 1Ct5 I DDS I I 1174 AL 74 UNIT1I Clll 2 it lf1Z9 1tfll2ZOZ l r l 14 f PH I lu HO r i it I 0 l v rt J I 1 1 1Ct 1 t ti B nd PST I I I i 2 2rnuc II u v 0 iMJ _ Ii 1 J11111 f C OST8 i t V f l t L_ _ v V F l NCTION 01 Pt AY I L f f v _______________ ___ J 11C _vL 1tNJt02 1 r 2V ovwN LOCKJ ONO _ OSTB TIIHK SI f ...

Page 63: ...9 XTAL 3 f 1 t l II r 000 0 2 00 t Of Yf tSSf3 1 fir _l r RBr 1 f 1 rl 33N _ t i v TO __ _ _ _ _ _ _ ___________ _ 11 ___ l 1 1 ll ST r _ t_ t Hl T Deolll Rf SE Tt 1 I l 085 p t 1 1 1 0 2 l i b c Q 9 9 I I o s OS IHI IS I OUST I Oftl P24 r t t i Dfl 1 Arst t I 6 __r_ 2 t O 0 15 r YI O I Yt CL t 1 J f1 Y S 01 JI v oz 1 I I I I __ YS OJ 20 t v o 11 I f1 0 5 It _ l V _ H 1 11 s n t 11 l _ _ i iKK ao ...

Page 64: ...IC o 05 uec PA UNIT T Cl4 Fl FG84 I ...

Page 65: ... Atil r J RH o TX I SI Of f 4 f I 05 RU Fl 0 7 3V 70 FG84A l c r 1 1 X T 3V 07 2 1512 TX O TV cm o ooe t ltt f J J i 0 0 o _ h I 122 3 1 I 05 ZSCZ90 1f u o ZSCZ904 RZJ 1 3 c 1fl t TX OFF 6 6V L c L 0 fi a _ L h Ih RZS Ut u u ll o 0 01 lt2f fl LI l IJIH 9 2 PLL AND PA IC lCH 13 8 ...

Page 66: ...e 404 991 6166 Fax 404 991 6327 lcom Canada A Division of lcom America Inc 3071 5 Road Unit 9 Richmond B C V6X 2T4 Canada Phone 604 273 7400 Fax 604 273 1900 lcom Europe GmbH Communication Equipment Himmelgeister Sir 100 4000 Dilsseldorf 1 W Germany Phone 0211 346047 Fax 0211 333639 Telex 8588082 ICOM D lcom Australia Pty Ltd Incorporated In Victoria 7 Duke Street Windsor Victoria 3181 Australia P...

Page 67: ...learn Inc 6 9 16 Kamihigashi Hirano ku Osaka 547 Japan A 5029H S Printed in Japan Copyright 1989 by lcom Inc ...